idTokenTypesSupported
@SerialName(value = "id_token_types_supported")
OIDC SIOPv2: OPTIONAL. A JSON array of strings containing the list of ID Token types supported by the OP, the default value is attester_signed_id_token (the id token is issued by the party operating the OP, i.e. this is the classical id token as defined in OpenID.Core), may also include subject_signed_id_token (Self-Issued ID Token, i.e. the id token is signed with key material under the end-user's control).